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Expert in Humidity Indicator Cards Since 2006
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FAQ

  • What is Cobalt Free Humidity Indicator Card?

    Cobalt Free Humidity Indicator Card is a environmental moisture sensitive paper without Cobalt. It will change color when the indicated relative humidity is exceeded, when atmosphere is in the dry status, the color is brown color, when moisture is rising in atmosphere and it is in the wet status, the color will be azure color.
  • What is Cobalt Dichloride Free Humidity Indicator Card?

    Cobalt Dichloride Free Humidity Indicator Card is a environmental moisture sensitive paper without Cobalt Dichloride. It will change color when the indicated relative humidity is exceeded, when atmosphere is in the dry status, the color is blue color, when moisture is rising in atmosphere and it is in the wet status, the color will be pink color.
  • What is Cobalt Chloride Humidity Indicator Card?

    Humidity Indicator Card is a normal moisture sensitive paper. It will change color when the indicated relative humidity is exceeded, when atmosphere is in the dry status, the color is blue color, when moisture is rising in atmosphere and it is in the wet status, the color will be pink color.
  • How to use Humidity Indicator Card?

    Put Humidity Indicator Card in the same package with printed circuit board, LED, semiconductor, various aeronautic and military equipment together. It is easy to quantify relative humidity levels from Humidity Indicator Card directly, and protects the product and equipment from the deleterious effects of humidity.
  • How does the Humidity Indicator Card change color?

    When the moisture level is rising and exceed the required humidity in the card, and the card is exposed under the wet atmosphere, the color of dot will change from brown color to azure color (or blue color to pink color).
  • After the color of Humidity Indicator Card changed, will Humidity Indicator C

    Humidity Indicator Card has antagonistic effect. When the atmosphere is dryer than the rating on the Humidity Indicator Card, the card will be changed from azure color to brown color (or pink color to blue color) inversely, and the card can be used again.
    Note: If the color of Humidity Indicator Card always change from azure color to brown color (or pink color to blue color) inversely, the accuracy of Humidity Indicator Card will be lowered.
  • What is Humidity Indicator Plug?

    Humidity Indicator Plug is a moisture measuring instrument and the part which is inlaid into the package of equipment, and we can know inside humidity from the Humidity Indicator Plug directly.
  • How to use Humidity Indicator Plug?

    Inlay Humidity Indicator Plug into the package of printed circuit board, LED, semiconductor, various aeronautic and military equipment, and we can know inside humidity from the Humidity Indicator Plug directly.
  • What is Desiccant

    Desiccant is a hygroscopic substance that adsorb the moisture from atmosphere, hold particles of water to itself, and sustains a state of dryness (desiccation) in its vicinity.
  • How to use Desiccant?

    Put Desiccant in the same package of printed circuit board, LED, semiconductor, various aeronautic and military equipment, when the moisture is rising, desiccant will adsorb moisture from the atmosphere and hold particles of water to itself.
One Step (Dongguan) Packing Material Co., Ltd.

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  Coral Yip
  coral@onestep.hk
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  coralyip
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